I have an ET340 that was used as a grid meter. Then was moved to be the solar-meter now, while an EM24 replaced it on the grid side.
I would like to reset the ET340, so I know my solar yield.
I couldn't find information about this on the net. So I asked Gavazzi... they said, it is possible, but they are not allowed to tell my why, because of security reasons (if I would write what I think of them, it would violate our community policy ;-) )
So i'll try if someone here knows how to do it... maybe with the Gavazzi software?